Home / 20,338.50-28,058.54-13,626.30

Finding the Fourth Proportional to 20,338.50, 28,058.54 and 13,626.30

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Solution

The fourth proportional to 20,338.50, 28,058.54 and 13,626.30 is: 18,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.50 : 28,058.54 = 13,626.30 : x
  2. Step 2: Convert to fraction form
    20,338.50/28,058.54 = 13,626.30/x
  3. Step 3: Cross multiply
    20,338.50x = 28,058.54 × 13,626.30
  4. Step 4: Simplify right side
    20,338.50x = 382,334,083.60
  5. Step 5: Solve for x
    x = 382,334,083.60/20,338.50
  6. Step 6: Final answer
    x = 18,798.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.